LoFP / it is possible the event logging service gets shut down due to system errors or legitimate administration tasks. investigate the cause of this issue and apply additional filters as needed.

Techniques

• T1070.001

Sample rules

Windows Event Logging Service Has Shutdown

• source: splunk
• technicques:
  • T1070.001

Description

The following analytic detects the shutdown of the Windows Event Log service by leveraging Windows Event ID 1100. This event is logged every time the service stops, including during normal system shutdowns. Monitoring this activity is crucial as it can indicate attempts to cover tracks or disable logging. If confirmed malicious, an attacker could hide their activities, making it difficult to trace their actions and investigate further incidents. Analysts should verify if the shutdown was planned and review other alerts and data sources for additional suspicious behavior.

Detection logic

`wineventlog_security` EventCode=1100
  
| stats count min(_time) as firstTime max(_time) as lastTime
    BY action app change_type
       dest dvc name
       object_attrs object_category service
       service_name signature signature_id
       status subject vendor_product
  
| `security_content_ctime(firstTime)`
  
| `security_content_ctime(lastTime)`
  
| `windows_event_logging_service_has_shutdown_filter`